Just found this from a tech support ticket over a year ago. I will post this here in case anyone else has any trouble with it.

"To change to the non-streaming version of the game":

1. Make sure that neither SWTOR nor Launcher is running.
   
2. Make sure that neither brwc.exe nor brsptsvc.exe is running.
   
3. Change the following line in the launcher.settings file (found in the SWTOR install directory: C:\Program Files (x86)\EA\BioWare\Star Wars - The Old Republic):
   From…, “bitraider_disable” : false…to…, “bitraider_disable” : true
   
4. Delete the following files and directory from the SWTOR directory:
   
   1. Assets/assets_swtor_*
      
   2. BitRaider
      
   3. swtor
      
   4. Movies

If you found this helpful, please let me know and I will add it to my Steam guide so others not in this group can find it. Thanks!